China Petroleum Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Keyong Yang

Qiang Li

Zheng Li

Chaogang Xie

Baoning Zong

Bin Sun

Anguo Mao

Genquan Zhu

Langyou Wen

Xiangbo Guo

Xueliang Chang

Dongqiang Ma

This invention relates to a process for co-producing cyclohexanol and alkanol, including a cyclohexene esterification step and a cyclohexyl ester hydrogenation step. This invention further relates to a process for further producing cyclohexanone or caprolactam, starting from the co-producing process, and an apparatus for co-producing cyclohexanol and alkanol. The process for co-producing cyclohexanol and alkanol of this invention is environment-friendly, with low production cost and highly improved atom economy.

Process and apparatus for co-producing cyclohexanol and alkanol

Disclosed is a process for producing dimethyl ether from methanol, which is characterized in that the absorbing liquid used in said absorbing column is the bottom liquid of DME-fractionating column and/or bottom waste water of the methanol-recovering column. Said process can significantly reduce energy consumption of the apparatus.

Process for producing dimethyl ether from methanol

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Beijing, China

Keyong Yang